Water Main Lining A Sustainable Alternative to Open Cut Replacement

Transcription

1 Water Main Lining A Sustainable Alternative to Open Cut Replacement Sean O Dell, PE Baxter & Woodman, Inc. B&W Client Seminar, Crystal Lake May 1, 2014

2 Agenda Why, What, When, Where, Who, How Reduction in Cost, Time, and Disruption Products / Suppliers / Contractors / Municipalities Installation Process Example Projects Conclusions / Question / Answer

3 Water Systems are Failing and Budgets are Shrinking

4 Is There a Strategy to Fix More Pipe with Less Funds? 1. Plan Ahead 2. Rethink our current methods 3. New Technology 4. Replacement vs. Rehab Consider Water Main Rehab

5 Positives of CIPP Lining Rapid Installation Little Excavation Low Impact on Traffic Improved Flow Characteristics Structural Stability Corrosion Resistance All Green benefits (less dust, noise, gas, etc.) Cost Savings

6 Open Cut Construction Disruption is Greater than Trenchless

7 Trenchless WM Rehabilitation Will Reduce Disruption

8 Trenchless WM Rehabilitation Will Reduce Disruption Open Cut 1,500 sq. yds. Trenchless 250 sq. yds. Existing 8-inh in parkway, ¼ mile

9 Trenchless WM Rehabilitation Can Reduce Project Cost Replacement: $400 per foot $2,000,000 per mile What if $300 per foot $1,500,000 per mile $500,000 Savings

10 Total Project Cost is More Than Engineering & Construction Cost

11 Where to Think About Lining as a Solution? Critical locations rail, pipeline, and road IDOT and County Roads Residential Mains Transmission Mains Busy Right of Ways Minimal Services

12 Where is Lining Being Implemented in our Region? Glenview Glen Ellyn Crest Hill Park Forest Skokie Naperville Soon Buffalo Grove Downers Grove Lisle LaGrange Streamwood Lombard Aqua Illinois Illinois American Many Large Cities in North America

13 What is CIPP for Water Main? Materials a) CIPP Tube (Fiberglass Reinforced Felt) b) Thermoset Epoxy Resin Aquapipe Insitumain

14 CIPP (Potable) Technical References Certifications and Manuals: NSF / ANSI 61 Certification ASTM F1216 and F AWWA M28 IEPA Approved

15 CIPP for Water Main: Specifications Design Parameters Pipe Condition Depth Design Life: yrs Groundwater Ovality Soil Modulus Working Pressure Pipe Slope and Bends Laterals Ground Water Soil H D

16 Spray Epoxy Liner Spectrum Contracting Triton Lining Other Technologies?

17 Who Supplies the CIPP Liner? IEPA has approved Suppliers/Products Sanexen Aquapipe Insituform Insitumain Blue Norditube Nordipipe (partial)

18 Licensed Installers FER-PAL Insituform SAK Michels Sheridan Plumbing

19 Installation Process Temporary By-Pass Dig Access Pits Pipe Cleaning Plugging and Inspecting Installation and Curing Testing Reinstate Services Restore Water Main Service Photos c/o Insituform

20 Temporary By-Pass Notification Fire Hydrant Connection Pipe on Surface Temp Drive Ramps Home Spigot Connection

21 Temporary By-Pass Disinfection Security

22 Temporary By-Pass

23 Access Pits 1. Traffic Control 2. ~ 6 x 10 x 12 below pipe 3. Minimize locations Valve, Fittings 4. Trench Boxes feet

24 Pressure Pipe Cleaning

25 Pressure Pipe Cleaning Rust and Scale Deposits need to be removed Cleaning (High-velocity water jetting machines) Mechanically powered equipment Cable attached devices Pipe pigs Rotary Chain-boring Televising (CCTV) Plugging Services

26 Plugging and Inspecting Internal Pipe Inspection Plugging of Services Televising (CCTV) Leaking water must be stopped Inspection to Owner/Engineer before lining installation 2-inch services??

27 Liner Installation 1. Impregnate 2. Insertion (Pull / Invert) 3. Pressurize and Circulate Hot Water 4. Cure / Cool / Cut References: ASTM F1216 and F1743 AWWA M28 IDOT Permit

28 Liner Installation Two Insertion Techniques: Pull Aquapipe Inversion Insitumain

29 Testing 1. Samples Short-Term Flexural (Bending) Tensile and Thickness Properties Failing Sample Ramifications 2. Pressure Testing ASTM and IEPA 150 psi for 2 hours -or- 1.5 times working pressure for 2 hours

30 Reinstate Services and CCTV Aquapipe Excess Resin Seal

31 Reinstate Services and CCTV Insitumain Blue itap TM

32 Install New Services Small excavation required Stainless steel saddle with multiple O-Ring and rubber grid map (5 or 8 wide) Tapping Bits: Standard for Cast Iron Shell Cutter for Liner

33 Pit Connections Insitumain Hymax Coupling Connection (see right) Aquapipe No Mech Connection Adhesion Liner Coupling New Pipe

34 Restore Water Service Disinfection Flushing Restore Permanent Services Dismantle Temporary Services Site Restoration and Cleaning

35 GPS/TV of Lined Water Main

36 Example Project - Oak Park, Illinois Ridgeland Avenue CIPP

37 Example Project - Oak Park, Illinois Lombard Avenue CIPP

38 Example Project - Crest Hill, Illinois Route 30 Water Main CIPPE

39 Example Project - Lombard, Illinois Roosevelt Road Water Main CIPP

40 Example Project - Park Forest, Illinois Sangamon Street Water Main CIPP

41 Water Main Lining - Points to Remember Literature Review: Can do Will do Engineering Design less effort Plan for worst case Ask the Experts / Contractors / Manufactures Discuss schedule with installers Lead Services Sewer Separation Requirements?

42 Water Main Lining - More Points to Remember IEPA approved technologies Permit Required 20-40% less expensive than open cut foot spans 6 to 20-inch max diameter (currently) >2-inch services cannot be robotically reinstated Liners can span tees & gate valves if you wish to abandon them Extends life by 50+ years

43 Water Main Lining is a Sustainable Alternative to Open Cut Replacement

44 Thank you kindly for your attention Sean E. O Dell, PE sodell@baxterwoodman.com Cell Phone Special Thanks to FER-PAL, Oak Park, Crest Hill, Lombard, Sanexen, Insituform, NASSCO, NASTT, Spectrum